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(共24张PPT)
（ Grammar time）
Unit 8 Then and now
Look and say
Twenty years ago，He
went to school by bike.
Look and say
Twenty years ago，They
went to school on foot.
Look and say
Now，he goes to school
by car.
Look and say
What do you often do these days
What did you do ten years ago
Look and say
These days 如今、sometimes 有时、often 经常，这些词是现在时的标志词。
结构：主语 I + 动词原形 + 其他
Look and say
单项选择
1.The key word “These days” tells us the sentence is ______.
A. 一般过去时 B. 一般现在时
2.I often ______ books online now.
A. buy B. buys C. bought
3.—What do you do these days
—I ______ at home.
A. work B. worked C. works
B
A
A
Look and say
In the past 在过去、Twenty years ago 二十年前
是过去式的标志词
结构：主语 I + 动词过去式 + 其他
不规则动词变形：work-worked, go-went, pay-paid, have-had, walk-walked, write-wrote，齐读记忆。
Look and say
动词不规则形式
Look and say
维度 一般现在时 (do) 一般过去时 (did)
时间范围 现在、现阶段、日常 从前、几年前、过去
时间关键词 now, these days, often, sometimes in the past, …ago, yesterday
动词形式 动词原形 动词过去式（规则 + ed / 不规则特殊变化）
核心含义 现在常常做、目前常态 以前做过，现在不再这样
两种时态对比总结
Look and say
Look and say
单项选择
In the past, I ________ (work) in an office.
Twenty years ago, I ________ (go) to shops.
I ________ (pay) in cash many years ago.
Ten years ago, I _______________ (not shop) online.
In the past, people ________ (have) no smartphones.
worked
went
paid
didn’t shop
had
Look and say
单项选择
These days, I sometimes ________ (work) from home.
Now I often ________ (shop) online.
In the past, I ________ (work) in an office.
Twenty years ago, I ________ (go) to real shops and ________ (pay) cash.
I ________ (have) online meetings every day these days.
work
shop
worked
went
paid
have
Practise
walked
were
wrote
goes
uses
writes
chat
Look and say
we take the metro/e-bike.
shop online.
read paper books.
wrote letters
In the past，we talked face to face.
Now，we talk through the WeChat.
Practise
am
is
are
are
is
are
is
was
was
were
were
was
were
was
Practise
C
a
a
Practise
studied
read
danced
watched
Practise
Practise
went
lost
broke
didn’t do
didn’t plant
Practise
went to school
saw a movie
did her homework
Look and say
I think the biggest change is smartphones.
Yes, it is a good change.
Now I can shop online and have online classes. It’s fast and easy.
I think the biggest change is our ways to work and shop.
Yes, it’s a great change.
These days we can work at home and pay with phones. Twenty years ago, people went to offices and paid cash. Our life becomes more convenient.
Look and say
基础作业（全员）：抄写本课时间标志词 + 不规则动词过去式，各 3 遍；完成课本剩余填空习题。
提升作业（中等生）：仿照课文，写 5 句话对比自己十年前和现在的生活。
拓展作业（优等生）：完成一张完整 “Then and now” 生活对比海报，下节课展示口头演讲。

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